Low-valent titanium( ii ) mediated intramolecular and regioselective alkyne/alkoxyallene reductive coupling reactions - Archive ouverte HAL
Article Dans Une Revue Chemical Communications Année : 2024

Low-valent titanium( ii ) mediated intramolecular and regioselective alkyne/alkoxyallene reductive coupling reactions

Résumé

Low-valent titanium(II) complexes turned out to be suitable reagents in the promotion of alkyne/alkoxyallene coupling reactions in an intramolecular fashion. The conditions developed herein led to a broad range of highly functionalized cyclic adducts with excellent regioselectivities toward the central carbon of the alkoxyallene moiety. Good yields (up to 76%) were obtained over 19 examples. One-pot late functionalization by electrophile trapping was also possible and led to excellent diastereoselectivities (up to 95/5 d.r.).

Domaines

Chimie
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Dates et versions

hal-04747961 , version 1 (22-10-2024)

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Florent Bodinier, Marie-Isabelle Lannou, Geoffroy Sorin. Low-valent titanium( ii ) mediated intramolecular and regioselective alkyne/alkoxyallene reductive coupling reactions. Chemical Communications, 2024, 60 (13), pp.1786-1789. ⟨10.1039/D3CC06084E⟩. ⟨hal-04747961⟩
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